Michael deebingy of syeacuse



(No Model.)

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UNITED STATES "PATENT OFFICE.

MICHAEL DEERING, OF SYRACUSE, N EW YORK, ASSIGNOR TO CHRISTOPHER C.BRADLEY, OF SAME PLACE.

COVER FOR HEATING-FORGES.

SPECIFICATION forming part of Letters Patent No. 369,168. dated August30, 1887.

' Application tiled February 2S, 1887. Serial No. 229,155. (No model.)

To all whom, it may concern:

Be it known t-hat I, MICHAEL DEERING, of the city of Syracuse, 'in thecounty of Onondaga and State of New York, have invented new and useful4Improvements inv Covers for HeatingForges, of which the following is aspecilication.

This invention relates to the removable'covers which form the tops ofheating-forges. These covers as ordinarily constructed consist of anumber of ire-bricks and a metallic frame or band which encircles thebricks and holds the same together in the form of a rigid plate. Theexcessive heat to which these covers are exposed expands the metallicframe or band, which causes the bricks to become loose and to fall out.

The object of my invention is to overcome this difculty; and it consistsin the improvements which will be hereinafter fully set forth, andpointed out in the claim.

In the accompanying drawings, Figure l is an end elevation of myimproved cover applied to a heating-forge. Fig. 2 is an elevation atright angles to` Fig. 1. Fig. 3 is a top plan View of the cover. Fig. 4is a top plan view of. an extended cover. Fig. 5 is a fragmentary topplan view of my improved cover, showing a modified construction of themetallic frame. Fig. 6 is a vertical section in line x x, Fig. 5.

Like letters of reference refer to like parts in the several figures. y

A represents the upper portion of a heating-forge of usual construction.

B represents one or more rows of nre-bricks or stone or other refractoryblocks arranged in the form of an arch, which rests upon the forge onopposite sides of the hearth thereof.

C C represent the two portions 'of the metallic frame in which the archof bricks B is secured. Each section C consists of a curved metallicplate, which rests against the upper side of the arch and extends fromthe crown to the outer end thereof. Each plate C is provided at itsouter edge with a downwardlyprojecting flange, d, which bears againstthe end of the arch. -The adjacent inner ends of the plates C C areconnected by one or more movable joints, which permit the outer ends ofthe plates to be adjusted toward and from each other, as may benecessary to clamp the bricks securely.

As shown in Figs. l, 2, 3, and 4, the movable joints are formed byperforated lugs e e, formed on the plates, and a pintle or bolt passingthrough said lugs and forming therewith hinges on which the plates canswing.

In the construction' represented in Figs. 5 and 6 the movable joints areformed by round knuckles f, formed on one plate, and engaging insocketed or recessed lugs g, formed on the other plate. The two jointedplates are adj usted by one or more screws, h, passing throughupwardly-projecting arms z', formed on the plates near their inneredges, and pro vided with screw-nuts j, which bear against the innersides of said arms.

Upon tightening the screw-nuts j the outer ends of the plates C areswung toward each other, thereby clamping the arch of brick and forcingthe latter upwardly against the concave lower sides of the plates C.This produces a close iit of the bricks in the metallic frame formed bythe plates C, and holds the individual bricks closely against eachother. Vhenthe bricks show a tendency to become loose, the plates areeasily adjusted to clamp the bricks securely.

'Ihe plates C C may be made of any desired length. Vhen the plates arecomparatively short, as indicated in Figs. 3 and 5, two movable jointsor hinges and a single adjustingscrew are sufficient for connecting theplates. When longer plates are used, as indicated in Fig. 4, the numberof `movable joints and adj usting-screws are increased. Instead offorming asingle long cover by extending the plates,`

as indicated in Fig. 4, a number of short cov ers may be arranged inline with each other. If the length ofthe arch of bricks varies somewhatby reason ofthe unequal size of the bricks, the frame is the arch to beclamped.

I am aware that it is not new to clamp the bricks between end plateswhich are pivoted to the outer ends of bars extending over the arch, andwhich are provided with an adjustf ingrod,whereby thepivoted platesareclamped against the brick-work, and I do not claim such construction.

quickly adjusted to the length of lOO I claim as inyinventionm justingdevice, whereby the end flanges are In a furnace-cover, the combination,with pressed against the arch by separating said an arch of refractoryblocks, of two metallic arms, substantially as set forth. binding-p1ateshinged together over the crown fitness my hand this 12th day ofFebruary, 5 of the arch, and constructed with concave 1887.

lower surfaces bearing against the upper side ,1 of the arch, andprovided at their outer ends MICHALL DDERNG' with rigid anges which bearagainst the ends \Vitnesses: of the arch, and near their inner ends withup- CALVIN S. BUNNELL, ro Wardly-extending arms connected by an adl JNO.J. LYNCH.

